a 17. It is the science workplace, whether indoors or outdoors.a. laboratory b. market C. office d. playground 18. It is a branch of science that deals with living organisms and vital processes of life chemistry b. geology c. biology d. astronomy 19. It is an experimental design that helps ensure that only one factor or variable in the experiment is change while keeping everything else the same. fair test b. law C. Scientist law d. theory
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Explanation:
17. a
18.c
19.a.fair test